Keskmine GPS koordinaadid postiindeks 390-812: 37.215, 128.222

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videod linnad:
>> Songhak-myeon/송학면 390-812, Chungcheongbuk-do/충북, Jecheon-si/제천시, Omiri/송한리, GPS koordinaadid: 37.21482,128.22169
>> Songhak-myeon/송학면 390-812, Chungcheongbuk-do/충북, Jecheon-si/제천시, Pojeonri/오미리, GPS koordinaadid: 37.2148,128.22167
>> Songhak-myeon/송학면 390-812, Chungcheongbuk-do/충북, Jecheon-si/제천시, Songhanri/포전리, GPS koordinaadid: 37.21485,128.22172